NILE CHEMICALS

PHENOL RED

SPECIFICATION SHEET

PRODUCTS

  CAS No. 143-74-8
Chemical Formula C19H14O5S
Molecular Weight 354.38
Dye Content ~95%
Solution Clarity (Water) To pass
Transition Range pH 6.5 - pH 8.0
Absorptivity (pH 1.2) 503 - 506 nm 1000 - 1100
Absorptivity (pH 3.0) 430-435 nm 600-700
Absorptivity (pH 6.5) 430 - 435 nm 600 - 700
Absorptivity (pH 8.0) 557 - 560 nm 1100 - 1200
Loss On Drying (110 c) < 1%

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